hy·​dra·​tion hī-ˈdrā-shən How to pronounce hydration (audio)
: the act or process of combining or treating with water: as
: the introduction of additional fluid into the body
hydration sometimes helps to reduce the concentration of toxic substances in the tissues
: a chemical reaction in which water takes part with the formation of only one product
hydration of ethylene to ethyl alcohol
especially : a reaction in which water takes part in the form of intact molecules
: the quality or state of being hydrated
especially : the condition of having adequate fluid in the body tissues

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Cite this Entry

“Hydration.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/hydration. Accessed 22 Jun. 2024.

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